Finding the Fourth Proportional to 2,637.42, 3,955.46 and 788.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,637.42 : 3,955.46 = 788.06 : x
2. Step 2: Convert to fraction form
   2,637.42/3,955.46 = 788.06/x
3. Step 3: Cross multiply
   2,637.42x = 3,955.46 × 788.06
4. Step 4: Simplify right side
   2,637.42x = 3,117,116.09
5. Step 5: Solve for x
   x = 3,117,116.09/2,637.42
6. Step 6: Final answer
   x = 1,181.88